DOI: 10.1007/s11069-020-04107-4
论文题名: Probabilistic seismic hazard assessment for Singapore
作者: Du W. ; Pan T.-C.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 103, 期: 3 起始页码: 2883
结束页码: 2903
语种: 英语
中文关键词: PSHA
; Seismic hazard maps
; Singapore
; Strike–slip
; Subduction
; Uniform hazard spectrum
英文关键词: deformation
; earthquake catalogue
; hazard assessment
; metropolitan area
; probability
; seismic hazard
; strike-slip fault
; subduction zone
; Greater Sunda Islands
; Singapore [Southeast Asia]
; Sumatra
; Sunda Isles
英文摘要: Seismic hazard assessment of metropolitan areas is an important topic in catastrophe risk management and disaster prevention. In this study, a probabilistic seismic hazard analysis (PSHA) is performed to estimate the seismic hazard for Singapore. The PSHA approach has been conducted based on the OpenQuake engine. An updated earthquake catalog for the neighboring region has been compiled from various sources, and three major source zones are identified using the updated earthquake catalog: Sumatra subduction zone, Sumatran strike–slip fault, and deformation–background zone. Also, 10 published ground motion prediction equations are incorporated in the logic-tree framework, which properly accounts for the epistemic uncertainty of ground motion intensity measures. The peak ground acceleration (PGA) values in the mean hazard maps at bedrock sites of Singapore for 10% and 2% exceedance probability in 50 years range from 0.04 to 0.05 g and from 0.14 to 0.15 g, respectively. The uniform hazard spectrum consisting of PGA and seven spectral accelerations is generated for rock sites in Singapore. Disaggregation analysis shows that the deformation zone identified contributes dominantly to the PGA hazard of Singapore, whereas the Sumatran strike–slip fault contributes dominantly to the long-period (spectral acceleration at 1.0 s) hazard. Besides, the seismic hazard maps for representative site conditions of Singapore are briefly presented. © 2020, Springer Nature B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168475
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Water Resources and Hydropower Engineering Science, Institute of Engineering Risk and Disaster Prevention, Wuhan University, 299 Bayi Road, Wuhan, 430072, China; Institute of Catastrophe Risk Management, and School of Civil & Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore; Green Buildings and Smart Cities Program, Sino-Singapore International Joint Research Institute (SSIJRI), Guangzhou, 510000, China
Recommended Citation:
Du W.,Pan T.-C.. Probabilistic seismic hazard assessment for Singapore[J]. Natural Hazards,2020-01-01,103(3)